20444227 has 2 divisors, whose sum is σ = 20444228. Its totient is φ = 20444226.

The previous prime is 20444213. The next prime is 20444233. The reversal of 20444227 is 72244402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20444227 - 2¹¹ = 20442179 is a prime.

It is not a weakly prime, because it can be changed into another prime (20444257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10222113 + 10222114.

It is an arithmetic number, because the mean of its divisors is an integer number (10222114).

Almost surely, 2^20444227 is an apocalyptic number.

20444227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20444227 is an equidigital number, since it uses as much as digits as its factorization.

20444227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 20444227 is about 4521.5292766939. The cubic root of 20444227 is about 273.4367592274.

Adding to 20444227 its reverse (72244402), we get a palindrome (92688629).

The spelling of 20444227 in words is "twenty million, four hundred forty-four thousand, two hundred twenty-seven".